Gong door-bell



(No' Model.)

J. P. GONNELL.

GONG DOOR BELL.

Patented June 28, 1892.

v n? i@ l@ n C UNITED STATES PATENT OFFICE.

JOHN P. CONNELL, OF KENSINGTON, CONNECTCUT.

GONG DOOR-BELL.

SPECIFICATION fomiing part of Letters Patent N o. 477,649, dated J' une28, 1892.

Application tiled J une '7, 1890.

To a/ZZ whom t may concern.-

Be it known that I, JOHN P. CONNELL, of Kensington, in the county ofHartford and State of Connecticut, have invented certain new and usefulImprovements in Gong Door- Bells, of which the following is a full,clear, and exact description, whereby any one skilled in the art canmake and use the same.

The object of my invention is to provide a gong door-bell that is soarranged as to be operated either by means of a pull-wire, a latch, or apush-button, and one that will sound an alarm by a succession ofrapidly-repeated blows of the hammer in imitation of the ringing of anelectric bell.

To this end my invention consists in details of the several parts makingup the structure as a whole, and in their combination, as moreparticularly hereinafter described, and pointed out in the claims.

Referring to the drawings, Figure l is a front or plan view of a bellembodying my improvement with part of the gong and itssupporting-bracket cutaway to show construction. Fig. 2 is a detail viewin central vertical section through a door and in section of a bell andits operating parts, shown as connected to a door. Fig. 3 is a detailView in section through a portion of the cam-lever socket. Fig. 4 is adetail view in vertical section through a door and part of thebell-operating mechanism, illustrating the method of using thepush-button to operate the striking mechanism.

In the accompanying drawings, the letter a denotes a base-piece that ispreferably of metal, cast to shape and provided with screwholes a',throughwhich screws or like fastening devices may be driven for thepurpose of securing the bell as a whole in position for use. Thisbase-piece is provided with an integral bracket or arm h, that isarranged to support a gong C, that is secured to the arm, as by means ofa screw taking into a threaded socket in the end of the arm, that ispreferably centrally located with reference to the base-piece and thestriking mechanism. A reciprocating slide CZ is mounted on the basepieceand is supported in a guideway formed in the guides cZ, that projectfrom the baseplate. A spring c is attached to the base-plate by beingtwisted about the stem a2, with the Serial No. 354,545. (No model.)

arm c thrusting against another stem a3 and a longer arm e2 projectingacross the base and engaging with the inner end of the slide (Z in suchmanner as to tend to hold the slide normally at the inner limit of itsplay. One edge of this slide (Z bears a series of teeth, forming a rackf, and the teeth of this rack are in engagement with the teeth of acogwheel g, that forms part of the hammer-operating mechanism. Thiscog-wheel gis borne on an arbor g', fast to which is a ratchet-wheel g2,the cog-wheel being secured to a ratchetwheel g3, that is engaged by a'spring-pawl g4 in such manner as to allow the cog-wheel g andratchet-wheel g3 to turn freely in one direction, while the pawl g4tends to hold the wheel against movemement in a reverse direction. `Theescapement-wheel g2 is in engagement with a pallet h, and projectingfrom the rock-shaft of which is a ham mer-arm t', on the end of which issupported a hammer t', located in proper position to be thrown intocontact with the gong C by the vibration of the pallet and thehammer-arm that is rigidly connected therewith.

The hammer is caused to operate to strike by causing the slide CZ to bemoved outward, the cog-wheel g turning freely while the slide is movingoutward; but as soon as the slide is released the pull-spring e tends todraw it inward, and in its inward movement, owing to the engagement ofthe rack f with the cogwheel t, the escapement-wheel g2 is rapidlyrotated in the direction indicated by the overlying arrow in Fig. l, soas to cause the pallet to vibrate rapidly, and this causes the hammer tostrike a series of rapid blows against the gong. This slide cZ may becaused to move radially outward by means of apullwire Zt', secured tothe slide, or the slide may be operated by a thumb-lever Z orpush-button m.

The thumb-lever Z is mounted in a basepiece Z', extending through asocket and between ears Z2, being supported by a pivot-pin Z3. Anintegral part of the base-piece is the linger-hold Z4, and clamping-armsZ5, projecting from the inner surface of the base-piece, are used tosecure the base-piece with the thumb-lever and iinger-hold in positionon the latch-plate n, the latter being secured to the door o, as bymeans of screws, in the or- IOO dinary manner. The end of the leverZengages the slide by extending through the opening cl2, as shown inFigs. 1 and 2 of the drawings. This thumb-lever is operated by pushingdown upon the outer extremity, which causes the inner end to be liftedup in such manner as to cause the slide to move radially outward. Assoon as the pressure of the thumb-lever is released the recoil of thespring e draws the slide inward and causes the bell to ring.

Then the push-button is used as a means ot operating the device, it ismountediu a base-piece m', adapted to be secured to the door 0, theinner end of the pintle on which the push-button is supported being inengagement with the arm fm2 of a bent lever m3, pivotally supported onthe arm b, with the other arm m4 of the lever in engagement with theslide d, so that when the push-button is thrust inward the bent lever isrocked on its pivot in such manner as to cause the slide t0 moveradially outward. The return movement ot the slide is produced by therecoil of the spring e, as before, and the bell is caused to sound.

I claim as my inventionl. In adoor-bell, in combination, a basepiece, areciprocating slide attached to the base-piece and provided with a rack,the mai nspring e, operating to retract the slide, a cogwheel of thebcll-operatin g mechanism borne 2. In a gong-bell, in combination with areciprocating slide in operative engagement with the hammer-operatingmechanism, a

' base-piece, and a thumb-lever fulcrumed on the base-piece, which hasan integral fingerhold and with one end in operative engagement with theslide, all substantially as described.

3. In combination with a gong-bell,the hammer-operating mechanismlocated within the gong, a latch-plate adapted to be secured to a door,the base-piece secured to the latchplate and having an integralfinger-hold, the clamping-piece Z5 for securing the base-piece to thelatch-plate, and the thumb-lever pivoted in the base-piece and with oneend in engagement with the slide of the hammer-operating mechanism, allsubstantially as described.

JOHN P. CONNELL. Vitnessesz CHAs. L. BURDETT, ARTHUR B. JENKINS.

